package com.tang.imgupload.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig extends CachingConfigurerSupport {

	/**
	 * 自定义redisTemplate方法
	 */
	@Bean
	@ConditionalOnMissingBean(name = "redisTemplate")
	@SuppressWarnings("all")
	public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory){

		RedisTemplate<String, Object> template = new RedisTemplate<>();
		// 配置连接工厂
		template.setConnectionFactory(factory);

		//使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）
		Jackson2JsonRedisSerializer jacksonSeial = new Jackson2JsonRedisSerializer(Object.class);

		ObjectMapper om = new ObjectMapper();
		// 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		// 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jacksonSeial.setObjectMapper(om);

		// value序列化方式采用jackson
		template.setValueSerializer(jacksonSeial);
		// key采用String的序列化方式
		template.setKeySerializer(new StringRedisSerializer());
		// 对hash的key采用String的序列化方式
		template.setHashKeySerializer(new StringRedisSerializer());
		// 对hash的value采用jackson的序列化方式
		template.setHashValueSerializer(jacksonSeial);
		template.afterPropertiesSet();
		return template;
	}
}
